[BON] ha scritto:
======================
s=[]
for i in range(11000-1):
for j in range(i+1, 11000):
....
s.append(((i,j),sim))
======================
above sim is floating type.
s.append is totally coducted 60,494,500 times.
but this code raise MemoryError.
My computer has 4G RAM.
i think it's enough. but it doesn't...
So, i've tested below code.
======================
a=[]
i=0
while i<60494500 :
a.append(i)
i+=1
======================
but this code raise also MemoryError.
How can i resolve this problem?
please, help...
Regards,
If you _really_ have to store so many numbers in memory (hint: if you
are processing them sequentially, you don't need to store all them - use
generators instead) then you may have better luck using mmap module to
create a huge file-memory object, that you can access both as a file and
as a list, and put numbers in it after packing/unpacking with struct.
Something like this (only marginally tested ):
>>> memory = mmap.mmap(-1, 60494500*4)
>>> def memory_put(offset, f):
... memory[offset*4:(offset+1)*4] = struct.pack( "%f", f )
>>> def memory_get(offset):
... return struct.unpack( "f", memory[offset*4:(offset+1)*4] )[0]
>>> memory_put(12, 3.14 )
>>> memory_get(12)
3.1400001049041748
Ciao
------
FB
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